USSR. SC N 2564 1 Та. Without "6".

Block of four USSR stamps, airmail, nominal value 60 kopecks, blue, recess printing on ordinary white paper, with gum, comb perforation 12,5-12, with black typographical surcharge: "1961 6 коп." - "1961 6 kopecks". Missed digit "6" in surcharge. Condition: original gum, without remarks. Has small top margin. Price for one stamp in SC catalog - 100000,00 roubles.